Alert archive / Michigan / Flash Flood Warnings in 2018

Flash Flood Warning 3, NWS Northern Indiana

June 9, 2018Cass County, Saint Joseph County, Michigan

NWS Northern Indiana issued this flash flood warning at Jun 9, 2018, 5:05 PM EDT for Cass County, Saint Joseph County, Michigan. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 9, 2018, 5:05 PM EDT (21:05 UTC)
Expired: Jun 9, 2018, 8:00 PM EDT
In force: 3 hr
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Flood severity: None

Counties Cass County, MI, Saint Joseph County, MI

The radar

The Northern Indiana radar (KIWX), 60 km from the middle of the area, began a volume at 21:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 9, 7:55 PM EDT	HEAVY RAIN 1.57	Sturgis, MI	AWOS STATION IRS, STURGIS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 9.1 hours before the alert went out and 205 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1269 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

590 
WGUS53 KIWX 092105
FFWIWX
MIC027-149-100000-
/O.NEW.KIWX.FF.W.0003.180609T2105Z-180610T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Northern Indiana
505 PM EDT SAT JUN 9 2018

The National Weather Service in Northern Indiana  has issued a

* Flash Flood Warning for...
  Eastern Cass County in southwestern Michigan...
  St. Joseph County in southwestern Michigan...

* Until 800 PM EDT.

* At 501 PM EDT, radar detected thunderstorms producing heavy rain 
  across the warned area. Up to four inches of rain have already 
  fallen. Flash flooding is ongoing. Swift water rescues were 
  reported by the media in Edwardsburg.

* Some locations that will experience flooding include...
  Sturgis, Three Rivers, Constantine, Cassopolis, White Pigeon,
  Centreville, Edwardsburg, Colon, Union, Nottawa, Penn, Fawn River,
  Mottville, Mendon, Burr Oak, Vandalia, Adamsville, Klinger Lake,
  Juno Lake and Donnell Lake.

Additional rainfall amounts of one to two are possible in the warned 
area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 4200 8529 4176 8529 4176 8609 4185 8609
      4201 8591

$$

SKIP

1 follow-up statement

354 
WGUS73 KIWX 092224
FFSIWX

Flash Flood Statement
National Weather Service Northern Indiana
624 PM EDT SAT JUN 9 2018

MIC027-149-100000-
/O.CON.KIWX.FF.W.0003.000000T0000Z-180610T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cass MI-St. Joseph MI-
624 PM EDT SAT JUN 9 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM EDT FOR
EASTERN CASS AND ST. JOSEPH COUNTIES...

At 619 PM EDT, flash flooding continues over the area. Three to 
five inches of rain have fallen. 

Some locations that will experience flooding include...
Sturgis, Three Rivers, Constantine, Cassopolis, White Pigeon,
Centreville, Edwardsburg, Colon, Union, Nottawa, Penn, Fawn River,
Mottville, Mendon, Burr Oak, Vandalia, Adamsville, Klinger Lake, Juno
Lake and Donnell Lake.

Additional rainfall amounts of one to two inches are expected in
the warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 4200 8529 4176 8529 4176 8609 4185 8609
      4201 8591

$$

SKIP

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 3:02 PM EDT	Special Weather Statement	IWX	Cass	43 min
Jun 9, 4:04 PM EDT	Special Weather Statement	IWX	Saint Joseph	26 min
Jun 9, 4:55 PM EDT	Areal Flood Advisory	IWX	Branch, Cass, Saint Joseph	3 hr
Jun 9, 5:39 PM EDT	Flash Flood Warning	IWX	Branch	3 hr
Jun 9, 7:07 PM EDT	Severe Thunderstorm Warning	IWX	Hillsdale	38 min

Nearby

Flash Flood Warnings in Michigan, 2018 Every flash flood warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.